Home / 282,759.03-390,208.73-155,442.83

Finding the Fourth Proportional to 282,759.03, 390,208.73 and 155,442.83

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Solution

The fourth proportional to 282,759.03, 390,208.73 and 155,442.83 is: 214,511.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,759.03 : 390,208.73 = 155,442.83 : x
  2. Step 2: Convert to fraction form
    282,759.03/390,208.73 = 155,442.83/x
  3. Step 3: Cross multiply
    282,759.03x = 390,208.73 × 155,442.83
  4. Step 4: Simplify right side
    282,759.03x = 60,655,146,553.65
  5. Step 5: Solve for x
    x = 60,655,146,553.65/282,759.03
  6. Step 6: Final answer
    x = 214,511.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.